Kinetic Theory of Ion Acoustic Instability in a Collisional Plasma
Abstract
In this paper we present a comprehensive kinetic theory of current driven ion-acoustic instability using a particle, momentum and energy conserving BGK collision model as suggested by Greene. We take into account, electron-electron, electron-ion, ion-ion and ion-electron collisions in our analysis. The theory gives a smooth connection between various limits of collisional parameter kl as it changes from ≪1 to ≫1. Apart from recovering all the known analytical limits our theory predicts the dependence of absorption/growth rate on electron-ion temperature ratio in the weak collision limit i.e. (mi/me)1/2>kl>1.
- Publication:
-
Journal of the Physical Society of Japan
- Pub Date:
- January 1990
- DOI:
- 10.1143/JPSJ.59.130
- Bibcode:
- 1990JPSJ...59..130S
- Keywords:
-
- Collisional Plasmas;
- Ion Acoustic Waves;
- Kinetic Theory;
- Plasma Oscillations;
- Wave Dispersion;
- Collision Parameters;
- Distribution Functions;
- Electron Scattering;
- Ionic Collisions;
- Landau Damping;
- Mean Free Path;
- Plasma Physics